Benefits of Green Roofs

BENEFITS OF GREEN ROOFS A green roof or living roof is a roof of a building that is partially or completely čovered with vegetation and a growing medium, plănted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems. Vegetation Growing medium Drainage layer Filter layer Roof assembly Root resistant layer BIO DIVERSITY Providing habitat at roof level, especially within urban areas, can have significant'benefits for wildlife, notably invertebrates and birds. Appropriately designed biodiverse roofs can support Local,'Regional and National BAP objectives, and contribute to mitigation plans. SUSTAINABLE DRAINAGE Retention of water in the substrate reduces and slows run off. Improving water quality through filtration. IMPROVED BUILDING PERFORMANCE Increasing the life span of the roof by protecting it from frost, high temperatures, UV and mechanical damage. + Reducing energy consumption by reducing the need for heating and cooling. Sound attenuation. CLIMATE CHANGE Climate Change Vegetation on a roof removes carbon from the atmosphere as part of photosynthesis and releases oxygen. Evapo-transpiration can reduce the urban heat island effect (caused by the absorption andre-radiation of heat from dense and dark building materials. AVERAGE ROOF STATISTICS 60 54 48: 42 36 30 24 18 12: 61 2009 2010 2011 2012 2013 Average Roof Surface ( Greened) O Average Roof Surface (Non-Greened) JR Roofing Hitchin Ltd JR Roofing http://www.jr-roofing.co.uk (Hitchin) Est 1979 ... ... 000